Uninterruptible power supply



FIG. 1 is a front perspective view of an uninterruptible power supply;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines depict the environmental subject matter only and formno part of the claimed design.

CLAIM The ornamental design for an uninterruptible power supply, asshown and described.